diff options
| author | Angel Pons <th3fanbus@gmail.com> | 2020-03-22 13:00:44 +0100 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-03-26 10:20:09 +0000 |
| commit | 5fd50b6b198d7e086945ca0255ccc0757b31f748 (patch) | |
| tree | 7cbbe92d78396d36e8d433dce9a8408cc8eb22af /src/northbridge/intel/sandybridge | |
| parent | 098240eb4fd4ef59510d5138538f2a2f7cc5dcdc (diff) | |
nb/intel/sandybridge: Add and use TC_DTP definition
This register is specific to Ivy Bridge. This changes the binary because
the operations get reordered, but it is equivalent.
Change-Id: Ibc9127e0fc268466c13f7c5ac8d942543713ca32
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/northbridge/intel/sandybridge')
| -rw-r--r-- | src/northbridge/intel/sandybridge/mchbar_regs.h | 8 | ||||
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit_common.c | 4 |
2 files changed, 10 insertions, 2 deletions
diff --git a/src/northbridge/intel/sandybridge/mchbar_regs.h b/src/northbridge/intel/sandybridge/mchbar_regs.h index a8ae9c53a9..cf29155f35 100644 --- a/src/northbridge/intel/sandybridge/mchbar_regs.h +++ b/src/northbridge/intel/sandybridge/mchbar_regs.h @@ -215,6 +215,10 @@ #define TC_RAP_ch(ch) Cx(0x4004, ch) /* Timings: Regular access */ #define TC_RWP_ch(ch) Cx(0x4008, ch) /* Timings: Read / Write */ #define TC_OTHP_ch(ch) Cx(0x400c, ch) /* Timings: Other parameters */ + +/** WARNING: Only applies to Ivy Bridge! */ +#define TC_DTP_ch(ch) Cx(0x4014, ch) /** Timings: Debug parameters */ + #define SCHED_SECOND_CBIT_ch(ch) Cx(0x401c, ch) /* More chicken bits */ #define SCHED_CBIT_ch(ch) Cx(0x4020, ch) /* Chicken bits in scheduler */ #define SC_ROUNDT_LAT_ch(ch) Cx(0x4024, ch) /* Round-trip latency per rank */ @@ -280,6 +284,10 @@ #define TC_RAP 0x4c04 /* Timings: Regular access */ #define TC_RWP 0x4c08 /* Timings: Read / Write */ #define TC_OTHP 0x4c0c /* Timings: Other parameters */ + +/** WARNING: Only applies to Ivy Bridge! */ +#define TC_DTP 0x4c14 /** Timings: Debug parameters */ + #define SCHED_SECOND_CBIT 0x4c1c /* More chicken bits */ #define SCHED_CBIT 0x4c20 /* Chicken bits in scheduler */ #define SC_ROUNDT_LAT 0x4c24 /* Round-trip latency per rank */ diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c index d10b859575..620c57404a 100644 --- a/src/northbridge/intel/sandybridge/raminit_common.c +++ b/src/northbridge/intel/sandybridge/raminit_common.c @@ -216,8 +216,8 @@ void dram_timing_regs(ramctr_timing *ctrl) printram("OTHP [%x] = %x\n", addr, reg); MCHBAR32(addr) = reg; - /* FIXME: This register might as well not exist */ - MCHBAR32(0x4014 + channel * 0x400) = 0; + /* FIXME: This register only exists on Ivy Bridge! */ + MCHBAR32(TC_DTP_ch(channel)) = 0; MCHBAR32_OR(addr, 0x00020000); |